Cita APA (7th ed.)

Puffer, R. R. (1950). Practical statistics in health and medical work. McGraw-Hill.

Cita Chicago (17th ed.)

Puffer, Ruth Rice. Practical Statistics in Health and Medical Work. New York: McGraw-Hill, 1950.

Cita MLA (9th ed.)

Puffer, Ruth Rice. Practical Statistics in Health and Medical Work. McGraw-Hill, 1950.